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Hello Good People!

Firstly I love the site, It really helps a lot.

I grow a very simple DWC system in a 1.5×1.5×2.5m grow tent and I try to keep everything within the system in my control, I monitor EC of nutes, ppm daily to know how to keep the perfect on a daily basics which is why I love DWC, its a soup of perfection really. Now The problem I have is Silica:

How to add it to the system properly with less or no issues? literally how? When to add it to the system? veg? flowering? both? Will this actually increase yields? The information I’ve read and watched thus far doesn’t really instill me with confidence, so can you help? Do I add it first, pH the water and then add the rest? or do I add it last and us it as pH up?